公开(公告)号：WO2005074600A3

公开(公告)日：2006-11-09

申请号：PCT/US2005003190

申请日：2005-02-02

Applicant: STRESSWAVE INC ,  EASTERBROOK ERIC T

Inventor： EASTERBROOK ERIC T

IPC: B23K11/30 ,  B23K11/11 ,  C21D7/02

CPC classification number: B23K11/115 ,  C21D7/02

Abstract: A method for cold working spot welded structures to improve fatigue life, and structures made by the method. Partially finished structures are provided assembled and joined by a spot weld nugget (50). Opposing indenters (46,48), or an indenter and a backing anvil, are used to squeeze the spot weld nugget to form one or two cold working dimples, respectively. Residual compressive stress is imparted in the workpiece,resulting in increased fatigue life.

Abstract translation: 一种用于冷加工点焊结构以提高疲劳寿命的方法，以及通过该方法制成的结构。 组装并通过点焊块（50）连接的部分完成结构。 相反的压头（46,48）或压头和后座砧被用来挤压点焊块，分别形成一个或两个冷作用凹坑。 在工件中施加残余压应力，导致疲劳寿命增加。

公开(公告)号：WO2005074600A2

公开(公告)日：2005-08-18

申请号：PCT/US2005/003190

申请日：2005-02-02

Applicant: STRESSWAVE, INC. ,  EASTERBROOK, Eric, T.

Inventor： EASTERBROOK, Eric, T.

IPC: B23K11/11 ,  C21D7/02

CPC classification number: B23K11/115 ,  C21D7/02

Abstract: A method for cold working spot welded structures to improve fatigue life, and structures made by the method. Partially finished structures are provided assembled and joined by a spot weld nugget. Opposing indenters, or an indenter and a backing anvil, are used to squeeze the spot weld nugget to form one or two cold working dimples, respectively. Residual compressive stress is imparted in the workpiece, resulting in increased fatigue life.

Abstract translation: 一种用于冷加工点焊结构以提高疲劳寿命的方法，以及通过该方法制成的结构。 部分完成的结构由点焊块组装和连接。 使用相对的压头或压头和后砧分别挤压点焊块以形成一个或两个冷作用凹坑。 在工件中施加残余压应力，导致疲劳寿命增加。

公开(公告)号：WO2002092255A1

公开(公告)日：2002-11-21

申请号：PCT/US2002/015526

申请日：2002-05-15

Applicant: STRESSWAVE, INC.

Inventor： EASTERBROOK, Eric, T.

IPC: B21D28/24

CPC classification number: B23P9/04 ,  B21C23/001 ,  B21D28/24 ,  B21J1/025 ,  B21J5/00 ,  B21J15/00 ,  B21J15/38 ,  B23P9/025 ,  B24B39/06 ,  C21D7/02 ,  C21D7/04 ,  C21D2221/00

Abstract: Metal cold-working tooling (90) and method of employing such tooling. The tooling is used to produce deformation in a workpiece (132), to provide a selected beneficial residual stress profile in the workpiece, in order to provide high fatigue life structures in a minimum number of manufacturing steps. An indenter (90) is used to coldwork a workpiece, causing dimples (170) in the workpiece (132). Preferably, the dimples are provided with a shape formed by application of a uniform pressure profile to the workpiece surface. As optimized, a relatively uniform beneficial residual stress profile is provided at both the surface and at the midplane apertures in a workpiece, so as to improve overall fatigue life. Also, an improved indenter tool profile shape is described, having a smoothly curved indenter surface portion (92). And, the use of consumable lamina wafers (W(1), W(2)) provides the benefit of easy application of uniform stress profile to a workpiece.

Abstract translation: 金属冷加工（90）及采用这种工具的方法。 工具用于在工件（132）中产生变形，以在工件中提供选定的有益的残余应力轮廓，以便在最少数量的制造步骤中提供高疲劳寿命结构。 压头（90）用于对工件进行冷加工，从而导致工件（132）中的凹坑（170）。 优选地，凹坑设置有通过对工件表面施加均匀的压力分布而形成的形状。 优化后，在工件的表面和中平面孔两端均设有相对均匀的有益残余应力分布，以提高整体的疲劳寿命。 此外，描述了一种改进的压头工具轮廓形状，具有平滑弯曲的压头表面部分（92）。 而且，使用消耗性薄片晶片（W（1），W（2））可以方便地对工件施加均匀的应力分布。

公开(公告)号：WO2004048073A1

公开(公告)日：2004-06-10

申请号：PCT/US2003/020131

申请日：2003-06-25

Applicant: STRESSWAVE, INC.

Inventor： EASTERBROOK, Eric, T. ,  SIGELMANN, Milton ,  LANDY, Michael ,  NAM, Taekssun

IPC: B29C73/00

CPC classification number: B21J15/50 ,  B21J15/02 ,  B21J15/04 ,  B21K25/00 ,  B23P9/025 ,  B23P9/04 ,  F16B4/004 ,  F16B19/06 ,  Y10T29/49915 ,  Y10T29/4994 ,  Y10T29/49947 ,  Y10T29/49954 ,  Y10T403/4966

Abstract: Rivetless nutplates, and method of installing fastening elements. Rivetless nutplate fasteners are installed in structures, and particularly metal structures, by providing flush fit barrel shaped plug or bushing portions in a hole in the structure as defined by an edge wall. The barrel portion is acted upon axially, and expanded radially outward toward the edge wall of the hole, to provide an interference fit. The ends of the barrel portion are machined as desired for flushness. Also, a hole is installed as necessary. Rivetless nutplates are easily installed, and the installation enhances fatigue life of the hole surrounding the barrel of the nutplate.

Abstract translation: 无铆螺母板，以及安装紧固元件的方法。 无铆钉螺母板紧固件通过在由边缘壁限定的结构中的孔中提供平齐地配合的筒状塞子或套管部分而安装在结构中，特别是金属结构中。 筒形部分沿轴向作用，并朝向孔的边缘径向向外扩张，以提供过盈配合。 桶部分的端部根据需要进行加工以进行冲洗。 另外，根据需要安装孔。 无铆钉螺母板易于安装，安装增加了螺母板筒周围孔的疲劳寿命。

公开(公告)号：WO0158617A9

公开(公告)日：2002-04-18

申请号：PCT/US0104240

申请日：2001-02-09

Applicant: STRESSWAVE INC

Inventor： EASTERBROOK ERIC T ,  JUHLIN NILS

IPC: F16B19/06 ,  B21D22/04 ,  B21J5/02 ,  B21J15/00 ,  B21J15/10 ,  B23P9/04 ,  C21D7/02 ,  B21D28/00

CPC classification number: B23P9/025 ,  B21C23/001 ,  B21J1/025 ,  B21J15/00 ,  B21J15/10 ,  B23P9/04 ,  C21D7/02 ,  C21D2221/00

Abstract: A compound indenter (18) for metal coldwork, and a method of employing such tooling. The compound indenter tool (18) is used to produce deformation in a workpiece structure (30), to provide a selected beneficial residual stress profile in the workpiece (30), in order to provide high fatigue life structures in a minimum number of manufacturing steps. Preferably, action of a compound indenter (18) causes deformation of the workpiece, causing dimples in the workpiece. An improved, compound indenter tool profile shape is described, having a first, elongate indenter (20) with a shaped indenter surface portion, and a second shaped indenter (22) surrounding the first indenter and forming an annular shoulder (44) recessed from the surface portion of the first indenter. Additionally, a foot (60) having a bottom portion (80) can be used to confiningly surround the second indenter during application of force to the surface of a workpiece, to prevent surface deformation.

Abstract translation: 用于金属冷加工的复合压头（18）以及使用这种工具的方法。 复合压头工具（18）用于在工件结构（30）中产生变形，以在工件（30）中提供选定的有益残余应力分布，以便在最少数量的制造步骤中提供高疲劳寿命结构 。 优选地，复合压头（18）的作用引起工件的变形，从而在工件中引起凹坑。 描述了一种改进的复合压头工具轮廓形状，其具有带有成形压头表面部分的第一细长压头（20）和围绕第一压头并形成环形肩部（44）的第二成形压头（22），所述环形肩部 第一压头的表面部分。 另外，具有底部（80）的脚（60）可用于在向工件的表面施加力的过程中限制性地围绕第二压头，以防止表面变形。

公开(公告)号：WO0158617A8

公开(公告)日：2002-02-14

申请号：PCT/US0104240

申请日：2001-02-09

Applicant: STRESSWAVE INC

Inventor： EASTERBROOK ERIC T ,  JUHLIN NILS

IPC: F16B19/06 ,  B21D22/04 ,  B21J5/02 ,  B21J15/00 ,  B21J15/10 ,  B23P9/04 ,  C21D7/02 ,  B21D28/00

CPC classification number: B23P9/025 ,  B21C23/001 ,  B21J1/025 ,  B21J15/00 ,  B21J15/10 ,  B23P9/04 ,  C21D7/02 ,  C21D2221/00

Abstract: A compound indenter (18) for metal coldwork, and a method of employing such tooling. The compound indenter tool (18) is used to produce deformation in a workpiece structure (30), to provide a selected beneficial residual stress profile in the workpiece (30), in order to provide high fatigue life structures in a minimum number of manufacturing steps. Preferably, action of a compound indenter (18) causes deformation of the workpiece, causing dimples in the workpiece. An improved, compound indenter tool profile shape is described, having a first, elongate indenter (20) with a shaped indenter surface portion, and a second shaped indenter (22) surrounding the first indenter and forming an annular shoulder (44) recessed from the surface portion of the first indenter. Additionally, a foot (60) having a bottom portion (80) can be used to confiningly surround the second indenter during application of force to the surface of a workpiece, to prevent surface deformation.

Abstract translation: 用于金属冷加工的复合压头（18）以及采用这种工具的方法。 复合压头工具（18）用于在工件结构（30）中产生变形，以在工件（30）中提供选定的有益的残余应力轮廓，以便在最少数量的制造步骤中提供高疲劳寿命结构 。 优选地，化合物压头（18）的作用导致工件变形，导致工件中的凹坑。 描述了改进的复合压头工具轮廓形状，其具有带有成形压头表面部分的第一细长压头（20）和围绕第一压头的第二成形压头（22），并且形成从 第一压头的表面部分。 此外，具有底部（80）的脚（60）可以用于在对工件的表面施加力期间限制地围绕第二压头，以防止表面变形。